I would like the following if at all possible.

Motherboard (which can support 4GB Ram, PCI-E x16 or better)
CPU (Quad Core ideally, doesnt matter if AMD or Intel, aslong as it matches the board)

And if possible, due to my wife being made redundant last night, I would need to pay over a 2-3 month period. I know its not easy, but its the only option I have right now as mine died on me this morning (at 3am playing MW2, the CPU burned out completely, and it fried the mobo).